Home / 57,428.06-86,140.87-30,783.11

Finding the Fourth Proportional to 57,428.06, 86,140.87 and 30,783.11

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Solution

The fourth proportional to 57,428.06, 86,140.87 and 30,783.11 is: 46,174.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,428.06 : 86,140.87 = 30,783.11 : x
  2. Step 2: Convert to fraction form
    57,428.06/86,140.87 = 30,783.11/x
  3. Step 3: Cross multiply
    57,428.06x = 86,140.87 × 30,783.11
  4. Step 4: Simplify right side
    57,428.06x = 2,651,683,369.04
  5. Step 5: Solve for x
    x = 2,651,683,369.04/57,428.06
  6. Step 6: Final answer
    x = 46,174.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.